The South Carolina State Ports Authority has approved additional work on a $525 million container terminal at the old Charleston Naval Base, reports Bloomberg Businessweek.

The $43 million job, awarded to Massachusetts-based construction company Jay Cashman, will see the material moved from a dredge disposal site on Daniel Island to inside a huge containment wall at the site of the new 280-acre container terminal.

According to Joe Bryant, the SPA’s vice president for terminal development, once the material is in place at the new site it will take around 18 months for it to compact and drain.

“This will take all of the upland fill that we have stockpiled,” Bryant added.

The South Carolinian terminal was originally scheduled for completion in 2013. However, the port authority delayed the project after deciding that the extra space provided by the site was not as yet a necessity.